Sofa



FIG. 1 is a left front perspective view of a sofa showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left front perspective view, shown in the reclined positionthereof;

FIG. 5 is a left elevational view, shown in the non-reclined positionthereof, the right side elevation being a mirror image;

FIG. 6 is a right rear perspective view, shown in the reclined positionthereof; and,

FIG. 7 is a right rear prospective view, shown in the non-reclinedposition thereof.

CLAIM The ornamental design for a sofa, as shown and described.